“One size”: what it actually means

A generous garment can cover a wide range of waist measurements, but shoulder width and sleeve length stay fixed. That is almost always where “one size” fails.

On a long dress, total length is the second critical point: ten centimetres more or less completely changes the look.

• Shoulders, flat, seam to seam.
• Chest, flat, under the armholes.
• Total length, from the shoulder top to the hem.

Three numbers remove most size-related returns. It is the best investment of time for an online shop.

A viscose-dominant blend drapes and adapts; a stiff cotton imposes its shape. Two garments with identical measurements can therefore fit very differently.

Stating the composition is not a formality: it is sizing information in disguise.